Ok CL gurus, help me out. The car starts, is idling very rough, about 1500 rpm, check engine light and VSA are on, but not flashing, temp is normal. I can turn the car off and it starts back up, but still idles rough. I don't want to put it in drive.
What could it be??

 

Oh yeah, 227K miles and 2nd tranny

 

It didn't do it while you were driving? You just got in the car and it started doing that? If you press the VSA button, does anything happen? What happens when you rev the motor in park or neutral?

And what part of Fort Worth are you in?

 

It's the weirdest thing, it only happened when I was in park. I got on the highway, put it in sportshift, went WOT a few times, and it went away. Strange. I was in the Mid Cities, but live in Benbrook.

 

Swing by an Autozone and see what codes are setting off the CEL. Easy and free start to what could be anything... Benbrook explains why I haven't seen your car around.

 

I live in Benbrook, but I'm all over the place, usually on 183 and 161.

 

Strange, I just got the same VSA lights and CEL on today as well. Got a EGR Valve insufficient flow code and third gear switch need to be replaced. Only difference is mine idles fine and drives fine, but when I pull up to a stop sometimes it drops the rpms kinda low then it goes back to normal idle on its own. Oh and btw just in case you don't know, the OBD II plug in is between the seat heater buttons behind the plastic piece that pops out. I didn't know that lol spent like 10 minutes trying to figure it out.

 

Sounds like clogged EGR.

Yea, there's a sticker under the steering wheel indicating where the OBDII port is. The first time I ever got my codes read, the AutoZone guy was soooo lost. Then made a crack at small Japanese hands. Those damn Japs in Ohio

 

Yeah, I'll be hitting up Jay Wolfe Acura a lot sooner than the Natl meet to get that fixed. And those damn Japs! lol.

 

Damn, I'm so glad I just cleaned my EGR last month. What's the word Trey, got a diagnosis yet?

 

First thing I check for high idle is vacuum leaks.

 

rough idle might be a bad ignition coil?

 

It definitely sounds like a misfire.


Get the codes read. That will really narrow down the options.

 

my buddy had the same problem. his coilpack went out, but im not saying it could be it, just giving an idea.

 

mine acted like that last year... cleaned ERG out.... there is a DIY here or on one of the Honda sites... you should be good to go... as it heats up here in TX... the code throwing commences ... LOL

 

Any update OP? Obviously it seems serious enough that you'd want to get it looked at/fixed within a 3-4 day timespan.

 

misfire should misfire regardless of idle or driving city/highway...

does it shake hard and CEL flash if you gun it?

when was the last time you tuned-up your car?

can be bad spark / fuel filter

 

I would check for Vac leak 1st followed by TPS, EGR, Coil packs, O2 sensor (pre cat) and possible tune up if not done recently.

 

Ok guys, I found out what the problem was, and boy, am I a dumbass.

1st of all, the clamp from my AEM intake pipe to the throttle body had come loose, which caused my entire assembly to rotate counter clockwise about 2 to 3 inches. This caused the bottom angle of the intake to poke through a crack in my driver side wheel well guard and rub against the tire. My tire had rubbed a hole in my intake pipe, causing too much air through the throttle body. This is what was causing the high revving at idle and lost of power. I don't know how I didn't notice this before.

So, I super-wrapped the pipe in duct tape, tightened all the screws and reordered an intake pipe from AEM. It's running fine for now, just glad I didn't eff up the throttle body.

 

... That sounds a lot worse than you had made it out to be.

 

I'm glad I was cleaning my filter, or it could have been. I'm sure replace the throttle body is not cheap.